10.
The Myth of Thinginess: Some Thoughts on Uploading Consciousness
Few science fiction
motifs are more ubiquitous than consciousness transference. Its uses
range from the comic through to the philosophic. The cinematic image
of two people with linked metal caps on their heads via which their
minds are swapped stretches far enough back in popular culture so as
only to be remembered in black and white, as does serious speculation
on what a person might do after waking up in someone else's body.
Though practically unrealistic, these modern myths make intuitive
sense as they reflect our tendency to identify ourselves with our
minds as opposed to our bodies—to see the body as a container for
our essential being, but not as integral to that being itself.
Similarly, speculation on the real possibility of uploading human
consciousness to a technological scaffolding of some kind has gained
increasing traction in popular discourse over the last few decades
and is currently a matter of not just serious investigation but
anticipated attainment. And here again, at the level of popular
culture, the image seems to be one of transference—taking as given
that once a suitable technological medium is developed, a person's
consciousness can be moved from one container to another. That is, we
tend to assign some degree of thinginess to consciousness itself—to
the mind. We assume that some THING is being
transferred from one medium to another, perhaps with perfect fidelity
and perhaps not.
For instance, when I
posted the following short talk on the subject of consciousness
uploading by Steven Kotler
(link)
to the Facebook page devoted to a course in Human Nature and
Technology, those students who responded tended to do so with
concern. There were the usual questions of whether we “should” be
undertaking such a venture, as well as some questions about how
accurately an actual consciousness could be copied onto a
non-biological medium, assuming the medium to be something analogous
to a hard drive and the consciousness in question to be something
analogous to data. There was also some interesting speculation on the
possibilities that such a process might hold, both existentially and
intellectually, for the long-term survival of whatever it is that
makes us us—for instance the exploration of space across distances
uncrossable in a single human lifetime. What every comment had in
common though (for reasons of student privacy, I will not reproduce
them here), was that same assumption that some THING would be
transferred from one container to another, that the stream of the
person's awareness would consist of a single line starting at
whatever point one's memory began, continuing through the duration of
the original body, then bridging into a second, artificial body or
sequence of bodies.
This assumption is deeply
embedded in Western culture, with its frequent association of
selfhood with some singular metaphysical entity, which for the sake
of simplicity we can call the soul. But to be honest, I've long been
critical of this seemingly commonsense assumption. My criticism is
rooted in the understanding of consciousness not as a thing in itself
but rather as an activity in a complex system (for a discussion of
this idea, see above entry “Well Bless My Cyborg Soul). The mind,
as far as our best cognitive science has been able to discern, is
produced by the brain—and produced not as a single being that
drives the system but rather as an emergent property arising from
many discrete elements located across the system, many having evolved
millions of years apart from others. The mind is, in other words, a
part of the brain's behaviour in the way that grasping is part of the
behaviour of the hand; it is simply one of the things the brain does,
not something that anything is. The notion of
transferring consciousness in this sense is thus not a matter of
moving a thing from one container to another; there is, literally,
nothing to move. Rather, as consciousness is dynamic, transference
might be usefully thought of as training one system to behave in a
manner functionally identical to a prior system, even in such areas
as data storage and memory construction. Should the copying and
training be complete, cognition originally active in a single system
would then be active in both (or all) systems. You would, at that
point (and maybe that point only), be literally in two (or more)
places at once, quite possibly looking yourselves in the visual
receptors.
Insofar as such
transference may offer a portal to immortality, it is important to
bear this last possibility in mind: because nothing would have moved
from the first medium to the second, the You still running in its
original biological system—call this one Bio-You—would be no less
mortal than before while the You now
running in the technological system—call this one Techno-You—might
be looking at a much later expiration date. From that moment on, your
functional identity would cease: Bio-You would continue to function
as before, collecting memories and experience, gradually changing
away from what never really was a steady state, until it either
failed internally or was rendered non-functional by some outside
cause, i.e. died by either illness or accident. Meanwhile, Techno-You
would also change, taking your shared memories and experiences
forward and thus, with every moment, becoming less and less identical
with the shared You at the moment of transference, but no less You
for all those changes as both systems, not just Techno-You, would be
in perpetual flux. In fact, given the superior accuracy of
technological to biological memory, it is arguable that after enough
years had passed, Techno-You would be more fully You than Bio-You
relative to the transference identity; old brains, after all, tend to forget
things. Thus, You both would and would not become radically extended.
Bio-You would of course die; all cerebral activity and thus all
mental activity would cease; no consciousness would carry forward. At
the same time, Techno-You might be alive and well, and no less real
for all of Your state-of-the-art systems. In fact, You might easily
end up attending Your own funeral, simultaneously dying and not yet knowing the experience of death, as much a stranger to yourself as
You are to any other individual and as all other individuals are to
You.
But what would be the
meaning in such an existence? It is a commonplace that the meanings
of our lives arise from their brevity: that whatever we want to do
with our time, we'd better do it fast. Time runs out and is therefore
precious, and how we spend it matters. Were we to achieve radical
life extension, say on the order of thousands of years, we might
suppose that this sense of urgency underlying so much of what we do
would be removed, and with it, the source of much of the meaning that
we experience during our fleeting few decades. Personally, I've
always found this position to be ripe with the sweet sweet stench of
self-satisfied bullshit.
Let's set aside the
question of full blown immortality as practically improbable and just
dwell on radical life extension in a technological medium, which may be a realistic possibility. At first, in this case, the above argument may
seem to have some traction: we tend to value things in proportion, at
least in part, to their rarity. The more rare: the more precious; the
less rare: the less precious. Were we to find ourselves with orders
of magnitude more time, it follows by this logic that each parcel of
time would be orders of magnitude less precious, the tendency being
toward virtual meaninglessness. The problem here, though—or one of
them—lies in the seeming assumption that this is the only way to
value time: that the IS of our current lifespans constitutes an
OUGHT, or at least a pretty insistent SHOULD. It has long seemed to
me, though, that this position does little more than assign a moral
gloss to the status quo by suggesting that our biological limitation
constitutes some sort of moral limitation. But how do we know that if
we were to have radically extended lifespans we would not also
develop radically extended horizons for achievement? Are our dreams
not in some way a priori constrained by this same limitation
that supposedly gives our lives meaning? The limit of what we can
aspire to cannot be assumed equal to the limit of what we could
aspire to. In fact in this case, CAN might end up being a fairly
small subset of COULD. Is COULD immoral because CAN? Is TEN immoral
because ONE?
Looked at in this light,
the possibility of radically extended horizons points not toward a
reduction in the value and meaning of a life, but toward an opening
up to possibilities both quantitative and qualitative that our
current lifespans don't allow us to seriously consider. Our
mistake seems to be in assuming our current and contingent limits,
which arise from nothing more than our immediate physicality, to be
teleologically binding. The life that can be imagined and enacted
over eight decades, the possibilities allowed and denied by that
limit, would certainly wear thin and probably meaningless after a few
centuries. But to impose an 80-year horizon on our imaginations while
standing on the brink of something orders of magnitude greater, and
then project the resulting meaninglessness onto that heretofore
unnavigable span of years, makes as much sense as standing in the
shallows, looking out over the waves, and saying to ourselves, “This
is all the ocean has to offer; the whole ocean is only more of this;
I really shouldn't build a boat.”
Life is always
embodied—life is something bodies do—and we have no idea how
meaningful a radically extended life span might be until we have
lived it in our own bodies, or in whatever bodies we may make for
ourselves. And as with any normal lifespan, some will be used well
and meaningfully while others will not. In some cases, the years will
certainly become a torment of tedium, but this is no more an argument
against continuing to lengthen our lives than is the possibility of
five or six extra maybe-meaningless decades to a neolithic person looking at a thirty
year expiration date. The value of expanding our horizons, even of
expanding them through new and alterable media while leaving our
biological selves staring behind us in confusion and wonder, lies in
the explorations we might make, not in those we might fail to
make.